Heating system for incubators



Sept. 2 1924.

C. A. MILTON HEATING SYSTEM FOR INCUBATORS Filed March 29,1922

INVENTOR. CHflELES ,4 fi/Lron'. BY M A TTORNEY.

Patented Sept. 2, 1924.

UNITED STATES PATENT OFFICE.

CHARLES A. MILTON, OF KOKOMO, INDIANA.

HEATING SYSTEM FOR INGUBATORS.

Application .filed March 29, 1922.

invention is the arrangement of a system of heating pipes in the upper portion of the incubator, which pipes are so arranged that the entire surface of the incubator will be uniformly heated.

A further feature of the invention is the provision of means for causing a constant" circulation of the heating medium through the system of pipes.

A further feature of the invention is the provision of a coil and means for rapidly heating the contents of the coil.

A further feature of the invention is the provision of means for containing a supply of heating medium and also providing for the expansion of the contents of the pipes.

Other objects and advantages will be hereinafter more fully set forth and pointed out in the accompanying specification.

In the accompanying drawings,

Figure 1 is an end elevation of an incubator showing the heating system applied thereto,

Figure 2 is a top plan view thereof with the cover of the incubator removed, and

Figure 3 is an enlarged detail sectional view of the heating system.

Referring to the drawings, 1 indicates an incubator which may be of the usual or any preferred type having an egg receiving compartment 2, and in order to uniformly heat all parts of the compartment a battery of pipes are introduced into the upper portion of the compartment 2, said pipes being preferably arranged in companion groups, each group comprising a pair of longitudinally extending pipe sections, 3 and 4-, which are joined together at one end by transverse pipe sections 5, while the forward ends of the pipe sections 4 are connected by a coupling 6 from which extends a feed pipe 7, the opposite end of said feed pipe being connected with one end of a heating coil 8.

The heating coil 8 is located within aver Serial no. 547,815.

tically extending flue 9 of a boiler 10, said fine being tapered from itslower to itsupper' end and extending axially through the boiler, one end of the heating coilcommunicating with the water chamber 11 within the: boiler 10, while the opposite ,end projects through the wall of the fine and boiler and connects with the end of the feed pipe 7.

The pipe sections 3 extend through the wall of the incubator 1 and are connected with the boiler 10 through extensions 12,- said extensions projecting downwardly and outwardly so as to carry the heating medium from pipe sections 3 to a point adjacent the lower end of the boiler 10, and as the heating medium enters the feed pipe 7 at a point ad jacent the upper end of the boiler, the heatsections.

The heating medium preferably consists of water and in order to compensate for any evaporation, incident to heating and circulating the water, and also to compensate for expansion of the water within the pipe sections, the ends of the pipes 3 extending through the wall of the incubator have cups 13 attached thereto, the feed openings 14 through which the contents of the cups enter the ends of the pipe sections 3 being more or less restricted thereby retarding the flow of the contents of the cups into said pipe sections. By properly filling these cups a reserve supply of water is carried to compensate for evaporation incident to the heating and circulation of the water and by leaving the upper ends of the cups open, the con tents of the boiler and pipe" sections can readily expand as the temperature thereof is increased.

Any suitable means may be provided for supporting the battery of pipe sections within the body of the incubator, but in the present instance brackets 15 are connected with one end wall of the incubator to engage the transverse pipe sections and a connecting rod 16 between the ends of the pipe sections 4, to which the pipe sections 5 are connected, while the outer ends of the pipe sections 3 and the feed pipe 7 are supported in notches in the end of the incubator. By mounting the heating ele ment in this manner it may be readily and easily mounted on the incubator or removed ing medium will be caused to freely and. constantly flow through the various. pipe therefrom, and as all the parts of the heating element are connected together, they will all be removed simultaneously.

In applying the device to use any suitable.

form of heating element 17 is positioned below the fine 9 so as to direct heat onto the coil 8, and as the coil is of less diameter in cross section than the diameter of the feed pipe 7 the contents of the coil will be very rapidly heated, and as it expands will passvinto the feed pipe 7 through the coupling 6 to both of the pipe sections 4, and from thence into the pipe sections 3 through the sections 5 and return into the boiler 10 through the extensions 12, thereby setting up a complete circulation through the heating system. So .long; as the heating element is directing heatagainst the coil 8 a constant uniform circulation will be maintained through the pipe sections, thus maintaining a uniform heat within the incubator.

tapered inner wall forming a flue, an outlet for hot'water in the side of the boiler adjacent the top thereof, an inlet for cold water in the side of the boiler adjacent the bottom thereof, a coil in said flue having one end in communication with the lower portion of said boiler and having its other end prosaidv flue having one end connected to the lower portion of the inner tapered wall of said boiler and havingits other end pro jecting through said inner wall adjacent the top thereof and ending'in said outer Wall to form a hot water outlet for the boiler, a pipe having one end secured to the outer wall of said boiler concentrically with the end of said coil for receiving heated water from the coil and distributing the same through the incubator, spaced cold water return pipes connected to the outer 3 55 wall of the boiler adjacent the bottom thereof, filling cups in communication with said return'pipes, and means for heating said coil, substantially as set forth.

In witness whereof, I have hereunto set my hand and seal at Kokomo, Indiana, this 21st day of March, A. D. nineteen hundred and twenty-two. I

CHARLES-A. MILTON. Witnesses:

C. T. BROWN, J E. BAISINGER. 

